发明授权
US4990824A Color cathode ray tube having interference filter with different pass
bands
失效
具有不同通带的干涉滤光片的彩色阴极射线管
- 专利标题: Color cathode ray tube having interference filter with different pass bands
- 专利标题(中): 具有不同通带的干涉滤光片的彩色阴极射线管
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申请号: US175997申请日: 1988-03-31
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公开(公告)号: US4990824A公开(公告)日: 1991-02-05
- 发明人: Leendert Vriens , Johannes C. N. Rijpers , Albert A. Comberg , Johannes H. M. Wilting , Aart A. Van Gorkum , Franciscus A. Vollenbroek
- 申请人: Leendert Vriens , Johannes C. N. Rijpers , Albert A. Comberg , Johannes H. M. Wilting , Aart A. Van Gorkum , Franciscus A. Vollenbroek
- 申请人地址: NY New York
- 专利权人: U.S. Philips Corporation
- 当前专利权人: U.S. Philips Corporation
- 当前专利权人地址: NY New York
- 优先权: GBX8707975 19870403
- 主分类号: H01J29/24
- IPC分类号: H01J29/24 ; H01J29/18 ; H01J29/32 ; H01J29/89
摘要:
A color cathode ray tube of the shadow mask or beam index type in which the screen structure applied to the faceplate has a plurality of triplets of optical interference filter stripes which are adapted to pass red (R), green (G) and blue (B) light produced by a homogeneous cathodoluminescent screen layer. The usual aluminium layer may be applied to the screen layer. The optical interference filter stripes may have short wave pass filters, band pass filters or a combination of both types. The short wave pass filter stripes may have modified quarter wavelength multilayer dielectric filters and the bandpass filter may have a Fabry-Perot filter.
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